Izitena ezinganyangekiyo ngePhosphate

Izitena ezinganyangekiyo ze-phosphate-high-aluminium ziyabizwa ngokuba zi-phosphate. Izitena ezinxibe i-phosphate luhlobo lwezinto ezinqabileyo, ezikumgangatho ophezulu we-bauxite clinker okanye isisombululo se-phosphoric acid esisisiseko njengeyona nto iphambili ekrwada, okanye i-aluminium phosphate binder, Emva kokucinezelwa nokwenziwa ngumatshini owomileyo, kuyaphathwa ngobushushu nge-400-600 ℃ ukwenza iimveliso ezinamachiza abophekileyo. Idityaniswe nezitena. Ukuthintela ukuncipha okukhulu ngexesha lokusetyenziswa kwemveliso kubushushu obuphezulu, izithako zihlala zifuna ukwazisa ukufudumeza izinto ezingafunekiyo, ezinje nge-kyanite, i-sillimanite, i-pyrophyllite, kunye ne-silicon carbide. Icocwe ngezitena eziphezulu zealumine kunye neseramikhi, ukumelana nokuxobuka kungcono, kodwa iqondo lobushushu elithambileyo liphantsi kunye nokumelana, ngenxa yoko inani elincinci le-corundum edibeneyo, i-mullite, njl. Ngokusekwe kwi-phosphoric acid kunye ne-phosphoric acid izitena ezinganyangekiyo, izitena ezitsaliweyo ezenziwe ngezitena eziphezulu zealuminium ngetekhnoloji ekhethekileyo kunye nezongezo zeekhemikhali zikuphucule kakhulu ukuxhathisa kwe-abrasion kunye nomthwalo wobushushu obuthomalisayo, ngaphezulu kwezitena zealumum ephezulu, amandla alungileyo, ukupholisa ngokukhawuleza kunye nokumelana nobushushu ngokukhawuleza, Ukumelana nokubola kwemichiza kunye ne-abrasion. Inkangeleko yayo iphezulu kunaleyo yezitena eziphezulu zealumni kwizitena zesamente ezijikelezayo.

Ukusebenza ngobugcisa:

(1) Ukusebenza kokumelana nokushisa okuphezulu kulungile, iqondo lobushushu eliyinjubaqa lingaphezulu kweedigri ezili-1770, liyakwazi ukumelana namaqondo obushushu aphezulu kakhulu, kunye nokuhla kwamaqondo obushushu aphezulu akunampembelelo imbi.

(2) Ukuzinza okuhle kakhulu kobushushu, ukumelana nokubanda okukhawulezileyo kunye nobushushu obukhawulezayo, kwaye akukho delamination okanye ukucobeka phantsi kotshintsho lobushushu.

(3) Ukuxhathisa ngemichiza, akukho kuqhekeka kunye nokuxobuka kuya kubakho kumoya we-Co kubushushu obungu-400-600 ° C.

(4) ukumelana nokunxiba okuhle kunye namandla aphezulu okucinezela.

Izitena ze-Phosphate ziye zamkelwa njengezitena ezikumgangatho ophezulu zokufaka isitena kunye neelayim.

Kukho iindidi ezimbini zezitena ze-alumina eziphakamileyo ze-phosphate: enye ye-phosphate-bonded high-alumina izitena (ekubhekiswa kuyo njengezitena ze-phosphate), kunye nezinye izitena ze-phosphate-bonded high-alumina (ekubhekiswa kuzo njengezitena ezinganyangekiyo).

Izitena ze-Phosphate zisebenzisa isisombululo se-phosphoric acid kunye noxinaniso lwe-42.5% ukuya kwi-50% njenge-binder, kwaye umndilili yi-bauxite clinker ibalwe kubushushu obungaphezulu kwe-1600 ° C kwiziko lokujikeleza. Ngexesha lokusetyenziswa kwezitena, i-phosphoric acid iyasabela kunye nomgubo ocoliweyo we-bauxite kwisitena ukusabela kunye nodongwe olukhanyelayo, kwaye ekugqibeleni lenze isibophelelo ikakhulu esenziwe nge-cristobalite aluminium orthophosphate. Izitena ezinganyangekiyo zisebenzisa i-phosphoric acid kunye ne-aluminium hayidroksayidi kwimizi-mveliso ukulungiselela isisombululo sealuminium phosphate njengesibopheleli. Umlinganiso we-molar ratio ngu-Al2O3: P2O5 = 1: 3.2. Umdibaniso osetyenzisiweyo uyafana nowezitena ze-phosphate. Kwinkqubo yokusebenzisa izitena, njenge-phosphate, ibinder esekwe kuhlobo lwe-cristobalite-aluminium orthophosphate.

Izitena ze-phosphate zilungele umlomo we-oveni yomda wotshintsho wee-kilns ezijikelezayo kunye nezinye iindawo apho izitena kulula ukuwa khona, kwaye kuyanceda nakwindawo yokudubula. Isetyenziswa kwakhona kwii-killer shaft mechanical, kilns kilns, carbon carbon rotns kilns, njl.

Ukusebenza kwemveliso: Inempawu zamandla aphezulu okucinezela kubushushu begumbi, uzinzo olomeleleyo lokukhwankqiswa kwe-thermal, ubushushu obuphezulu bokuthambisa umthwalo, ubungakanani obuchanekileyo, ubungakanani bevolumu ephezulu, kunye nokumelana nokunxiba okuhle.

Iimpawu zomzimba kunye nemichiza yezitena ze-phosphate: